[Soekris] Hard power problem with net5501-70

[Soren Kristensen]

Hi,

It's a known problem that we're working on right now. More info shortly.


Best Regards,


Soren Kristensen

CEO & Chief Engineer
Soekris Engineering, Inc.


ymartin wrote:
> 
> We got some hard power problems here with 20 new net5501-70 (serials numbers
> from 173070 to 173089):
> -> 
> When we unplugged the power-supply then re-plug, sometime it doesn't
> restart, without any reason.
> - We are using 12V 1.5A power supply from Globtek and one PCI card plugged
> on the Net5501-70.
> 
> What we do :
> 
> We tried different voltages from 7.5 to 15 Volts without any stable result.
> - With input at 7.5V., there is a small noise probably generated by internal
> converter (aprox. 130mV/300kHz) but I don't think this will affect the board
> (tested on 12V. pins).
> - With input at 12V. noise is insignificant.
> - Hard power problems "looks like" more stable with low voltage (7.5V)
> 
> Is it a known problem? What can we do to resolve this issue?
> 
> 
> -----
> Regards,
> 
> Yves MARTIN
> ymartin at PointCA.com
> PointCA Télécom
> 
> Tél (514) 381-5151 #101
> SF/TF 1 866-781-5151
> www.PointCA.com
>